Posted by admin | Posted in trees,shrubs | Posted on 01-02-2010
Tags: desert shrubs adaptations, shrubs adaptations

Biology adaptations help?
Can anyone help me out with some more adaptations, I’m stumped.
Basically I have to describe likelely adaptations that would happen and explain why they happen to a rat population which was placed in an island with this environment.
-The island surrounds an extinct volcano.
-Vegetation is dependant on altitude.
-At ground level/the base of the island there is mostly grass growing.
-At the low part of the slope you start to see shrubs
-Halfway up it is now a lush tropical setting with tons of trees and fruit etc…
-It rains often
-On the island there are 2 species of bird (one of them eats the other, while one eat fish)
Thanks if any of you have any ideas.
No adaptations. Rats are already generalists and at home in most terrestrial ecosystems.
or
The volcano becomes un-extinct, and incinerates the island, rats included.
Not what your teacher wanted, eh?
==
There are a diverse number of niches into which the rats could radiate, possibly leading to several speciation events.
1. A population of rats thrives on eating jetsam. Over generations, they adapt to living on the shore, including subcutaneous fat, and webbed feet for better swimming. Their descendants are great swimmers and can actively dive for shellfish, spending hours at sea and returning to shore mainly to sleep or to care for young.
2. A population of rats lives in the grassy area. They avidly eat grass seeds and stalks. Over time, they develop larger claws to dig up the grass rhizomes. Their descendants dig and live in burrow warrens.
3. A population of rats lives in among the shrubs. Over time, they develop stronger jaws, to crack larger and heavier seeds.
4. A population of rats live in the tropical forest. They’re omnivorous, and avidly hunt the eggs of both birds — leading to the quick extinction of the birds. They remain omnivorous, and with an arboreal life, they develop gliding membranes which reduces the likelihood of dying in a fall. Their “hands” become more adept at gripping, and, while they love to eat the fruit, they’re also pretty good at being insectivores or grabbing small lizards and frogs.
Gardens.wmv
|
|
ROG-11847 Ocotillo – also called coachwhip cactus, Jacobs staff and Photo Mugs ROG-11847 Ocotillo – also called coachwhip cactus, Jacobs staff and candlewood – in flower California, USA Fouquieria splendens This desert shrub is not a cactus. It has adapted to desert life and is able to sprout leaves whenever it rains. Bob Gibbons Please note that prints are for personal display purposes only and may not be reproduced in anyway. contact details prints ardea tel and 44 (0) 20 … |
|
|
Photo Jigsaw Puzzle of ROG-11847 Ocotillo – also called coachwhip cactus, Jacobs staff and from Ardea Wildlife Pets $24.99 Photo Puzzle, ROG-11847 Ocotillo – also called coachwhip cactus, Jacobs staff and. ROG-11847 Ocotillo – also called coachwhip cactus, Jacobs staff and candlewood – in flower California, USA Fouquieria splendens This desert shrub is not a cactus. It has adapted to desert life and is able to sprout leaves whenever it rains. Bob Gibbons Please note that prints are for personal display purposes only a… |
|
|
Ornamental Shrubs for Garden, Lawn, and Park Planting, With an Account of the Origin, Capabilities, and Adaptations of the Numerous Species and … Rare Sorts, Suited to Cultivation in the Unit $18.05 Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfecti… |
|
|
Ornamental Shrubs for Garden, Lawn, and Park Planting, With an Account of the Origin, Capabilities, and Adaptations of the Numerous Species … Sorts, Suited to Cultivation in The: -1899 $26.99 Originally published in 1899. This volume from the Cornell University Library’s print collections was scanned on an APT BookScan and converted to JPG 2000 format by Kirtas Technologies. All titles scanned cover to cover and pages may include marks notations and other marginalia present in the original volume…. |
